Motor meter



May a, 1924. 1,493,318

G. BRAUN I MOTOR METER Filed Aug. 23. 1922 2 Sheets-Sheet 1 a g' Q 15 Geor e Brewm,

16 27 I INVENTOR d vdzaflx v ,r

ATTORNEY WITNESS;

- G. BRA'UN MOTOR METER Filed Aug. 23 1922 2 Sheets-Sheet 2 4 EUJEV T George Bram/n.

aflczofluw Patented May 6, 1924.

sures arias.

MOTOR METER.

Application filed August 23, 1922. Serial No. 588,865.

To all whom it may concern:

Be it known that I, Gnosca BRAUN, a citizen of Germany, residing at Providence, in the count of Providence and State of Rhodelslan ,have invented new and useful Improvements in Motor Meters, of which the following is a specification.

My= present invention has reference to a motor meter.

In carrying out my invention, I propose to produce a motor meter in which a thermostatic spring influences an indicating finger to cause the same to travel over indicia on the face of the meter so thatthe driver ofc-theautomobile willbe acquainted with engine conditions.

A further object is to rovide a motor meter of this character wit lighting means whe'reb the motor conditions can beobserved in the night as well asin' the day.

The foregoing, and other objects which will present themselves as the nature of the invention is better understood, me be accomplished by a construction, com ination and operative association of parts, such as is disclosed by the drawin which accompany and form part of th1s application.

In the drawings Figure 1 is an elevation of a motor meter in accordance with this invention.

Figure 2 is a sectional view on the hne 2-2 of Figure 1.

Figure 3 is a sectional view on the line 3-3 of Figure 1.

Figure 4 is an elevation with parts broken away and parts in section.

F1 re 5 is a detail view of the dial hand and its intermediate associated members.

As disclosed by the drawings my motor nular depression for the reception of a gasket 6, and the threaded portion 5 of the tube4 has screwed thereon nuts 7 for effectively locking the device on the cap.

The ring frame arranged in contacting engagement on its opposed faces with annular members 8 respectively, the inner eripheral edge of which is beveled inwar y.

The members 8 are secured on the frame by removable elements in the nature of screws 9. The annular members have their bevelled edges engaged by the beveled edges of glass disks 10 and 11 respectively.

The ring-like body 2 has its rear face at its inner periphery provided with an anopening14 therethrough, and to one side of-the opening there .is secured a transparent plate 15 which engages the inner portion of thering gasket 13 as shown and is provided with radially disposed indicating lines thereon which are perceptible through the opening 14. The transparent plate 15 has im rinted thereon warning data, such as ormal, and ma have the legends Cool, and Hot, as wel as Danger and Stop. However Cool and Hot are not shown in the drawings, but the dial is graduated as shown. The plate 15 is of transparent material.

g The dial hand is indicated by the numeral 16 and is designed to be swung over the indicia on the plates 12 and 15 when the same ,is thermostaticall dial is retained in a vertical position and in .a line with the arrow that is arranged centrally on the dial disk or plate 15. However, the dial is now in Fi re 1 arran d to the left of the arrow. he hand 16 his its lower end provided with an ofi'set portion. 17 received through an elongated slot 18' in the plates 12 and 15. From thence influenced. The

the hand is provided with an angle extension 18' arranged parallel with the hand proper. Screwed m suitable openings on means the opposed walls of the base 3, above the shoulder on which the gasket 13 rests are bolt members 19 respectively having conical or pointed confronting ends, and these ends are received in conical openings on the ends of a bearing member 20. The member receives the portion 18" of thehand therethrough, and has screwed thereon a nut 21 to bind the said portion 18' against the sleeve, so that the sleeve and hand will turn in unison.

On the end 18' of the hand 16 there is a laterally extending (pin 21' which is received in an elongate slot 22 on the end of the thermostatic spring 23. The's ring is given a half turn to provide the attened slotted portion through which the pin 21' passes. The spring is substantially; U- shaped in plan, one arm of which is indicated for distinction by the numeral 2d resting against one of the walls of the tubular portion 4 of the improvement and having its end received in the ring body 2 of the improvement and bolted as at 25 to the wall thereof. The tubular member 4 has a threaded opening therethrough adjacent its closed end,'and in this opening there is a headless bolt 26 designed for contact with the arm 24 of the thermostatic spring for adjusting this arm of the spring with respect to its second arm, an consequently regulatin the influence of the spring by varying egrees of temperature.

In the body 2, below the opening in the dial plate 12there is secured the angle ends of a transversely arra'n ed bar 27. This bar has secured upon one 0 its faces the straight end of a substantially U-shaped spring clip 28, both the cli and bar having opposed a' ertures theret rough for the reception of. t e lu on the base 29 of an electric bulb 30. T e bar 27 is also provided with a depending substantially L-shaped bracket ortion 31 supporting thereon'the termina or contact element 32 of, an electric conductor 34. The conductor passes through an openin to one side of the base of the body 1, a ho low plu 35 being screwed in the said opening an providing a guide for the conductors. The conductors are encased in an insulating cover and are directed to the batscription, it being apparent that the expansion and contraction of the thermostatic 6 spring incident to the heated or cooled condition of the radiator will influence the hand 16 to swing the same over the indicia on the dial so that the condition of the radiator and consequent condition of the engine will be apparent to the driver of the machine. It will be also noted that by lighting the bulb such conditions may be observed in the night as well as in the day. The device is extremely simple, may be cheaply manufactured and marketed, but I may desire ata later date to make changes therefrom, and therefore it is to be understood that the invention is to be limited only to the scope of the ap ended claims.

Having described the invention, I claim v 1. In a motor meter, a frame havin a dial rovided with graduations and ot er indicia, said frame having a tubular extension whose end is closed, a dial hand arranged over the dial pivotally sup orted in the frame and having a lateral pin elow its pivot, and a two-arm thermostatic spring arranged in the tubular extension of the frame, one of the arms being secured to the frame and the other arm having an elongated slot receiving the pin of the dial hand therethrough.

2. A motor meter, including a ring frame having a base provided with a tubular extension whose lower end is closed and whose upper end is widened and threaded, transparent disks on the opposed faces of the mug frame, a dial arranged centrally in the frame and having graduations and indicia thereonand also having an opening therethrough, a dial hand pivotally supported in the frame, means for ad usting the pivots for the hand, a lateral pin on the lower end of the hand, a two-arm thermostatic spring in the tube, one of the arms being secured to the frame and the other arm having its end arranged transversely with respect to the plane thereof and provided with an elongated slot receivin the pin for operative association therewit 3. In a motor meter, a ring frame having a base and a tube extending from the base whose lower end is closed and the bore of the tube communicating with the fram transparent lates on the opposed faces 0 the frame, a ial disk between the plates and havin an opening therethrough, a dial hand isposed over the dial, a bearing member on t e hand, adjustable pivots, on the frame received in the ends of the bearing member, a laterally extending pin on the hand below the bearing member, a two-arm thermostatic sprin in the tube having one of its ends secur to the frame, its other end provided with an elongated slot receiving therethrough the pin on the hand, and

adjusting means between the tube and the thermostatic spring arranged in the tubular thermostatic spring. extension of the frame, one arm being se- 10 4. In a motor meter, a frame having a cured to the frame and the other arm having dial therein, said frame having a tubular exan elongated slot receiving the pin of the 5 tension whose outer end is closed, a dial dial hand therethrough, and means for'illuhand arranged over the dial and being pivminating the dial. otally supported in the frame and having a In testimony whereof I aifix my signature. 5 lateral pin below its pivot, and a two-arm GEORGE BRAUN. 

